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11902 (1991 PZ12)
Classification: Main-belt Asteroid          SPK-ID: 2011902
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1320464183801621 4.5585e-08  
a 2.431671137907304 9.0256e-09 au
q 2.110577673468232 1.0981e-07 au
i 5.55223197052049 4.205e-06 deg
node 322.0189393003847 4.2166e-05 deg
peri 80.92376673517217 4.5432e-05 deg
M 153.7249172455517 1.5521e-05 deg
tp 2458409.078029215306
(2018-Oct-17.57802922)
5.9572e-05 TDB
period 1385.018858994708
3.79
7.7111e-06
2.111e-08
d
yr
n .2599242585485801 1.4471e-09 deg/d
Q 2.752764602346377 1.0217e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1608  
   data-arc span      12942 days (35.43 yr)  
   first obs. used      1984-11-20  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50297  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 03:38:10  

Additional Information
 Earth MOID = 1.12753 au 
 Jupiter MOID = 2.63711 au 
 T_jup = 3.489 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.5   n/a MPO467803  
diameter diameter 3.504 km 0.222 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.361   0.090 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

11902 (1991 PZ12)          Discovered 1991-Aug-05 by Holt, H. E. at Palomar
Reference: 19991026/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1991 PZ12 = 1984 WH1 = 1984 YF3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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